ew, ew and why??

So I am working on week 3 of my fear/phobia research study. This week the Jr Professor sent me a link to a utube video of a bunch of kids puking their guts out, SO GROSS. I have watched it a few times, and actually gagged once, but I have not brought myself to turn the volume on to watch it. I am not sure how it is all suppose to help me get over my phobia. Apparently when your anxiety levels go up, it is not humanly possible for your anxiety to stay at a high level for a long time, your body gets to exhausted, and it would gradually and naturally drop down on its own. So by exposing me to my phobia and remaining in the moment of the phobia my anxiety should drop down and gradually that will cure me. The Professor tells me that by exposure i will get over my fear, I am not sure that I see that happening yet, but I remain hopeful.